Jesse SheidlowerToday's trivially dull #fandom antedating for the Historical #Dictionary of #ScienceFiction: "semiprozine", a well-produced fanzine, from 1947 to 1946.
This entry has now been fleshed out with a number of additional examples, thanks to contributor Clive Shergold.
Bee Ostrowsky@jessesheidlower That's seven whole months, Jeff deserves those flowers